<div class="container">
    <div class="row">
        <div class="col-md-12 text-center">
            <h1 class="bg-primary p-1 rounded-pill">后台数据统计</h1>
        </div>
        <div class="col-md-6">
            <!-- 左上角 开始 -->
            <div class="row">
                <div class="shadow rounded-3" id="echarts-a" style="width: 50%; height: 300px;"></div>
                <div class="shadow rounded-3" id="echarts-product-total" style="width: 50%; height: 300px;"></div>
            </div>
            <!-- 左上角结束 -->

            <!-- 左下角开始 -->

            <div class="shadow mt-5" id="echarts-money" style="width: 100%; height: 400px;">
            </div>
            <!-- 左下角结束 -->
        </div>
        <div class="col-md-6 rounded-3">
            <!-- 用户注册地分布 -->
            <div class="shadow" id="echarts-chinesemap" style="width: 100%; height: 500px;">
                <div class="d-flex justify-content-center">
                    <div class="spinner-border" role="status">
                        <span class="visually-hidden">Loading...</span>
                    </div>
                </div>
            </div>
            <ul class="shadow mt-4 list-unstyled p-3" id="currentOrders" style="width: 100%; height: 240px;"></ul>
        </div>
    </div>

</div>
